During the last week Chandra completed the observing schedule as
planned.

A real-time procedure was completed on June 1 to patch the angular
momentum auto-unload threshold and dead-zone constants in CPE-A. The
auto-unload threshold was raised to agree with the value in the OBC,
while the dead-zone was raised to keep the duration of the unloads
unchanged. This patch reduces the possibility of an unnecessary
momentum unload shortly after safe-mode entry when the thermal
environment of the MUPS thrusters is unconstrained.

A real-time procedure was completed on June 3 to patch the ACIS flight
software. The uplink and comparison with ground image were completed
nominally. The patch corrects an occasional error in raw-mode runs in
which rows of CCD pixels were dropped from output telemetry and
provides a modification that will allow for the future addition of
timed-exposure modes without increasing code or testing complexity.